To celebrate Oprah's 20th anniversary, celebrities have been busy recording surprise messages of congratulations. Tom Hanks is up first!

"The first time I did The Oprah Winfrey Show in 1987, [I was] excited beyond compare," he recalls, "One of the first questions [from the audience] I received was the soul-searching, hard-bitten, straight in-your-face question: 'boxers or briefs?'

"[Oprah's] always been there, every afternoon or morning, as perennial as the air and as fresh as a cool breeze. Congratulations on 20 fabulous years, Oprah! You know what? You're good for television, you're good for America and you're good for the people of our world."